MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF containing embedded JavaScript, which is a common technique for delivering malicious content. It also contains numerous external URIs pointing to disposable domains, suggesting a phishing or link-farming operation. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to redirect users to phishing sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9855
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL https://infrive.ru/uplcv?utm_term=the+vincent+brothers+pdf
- http://ekbdrive.ru/ckfinder/userfiles/files/tibafizizuxajij.pdf
- http://andrenickels.de/ckfinder/userfiles/files/dived.pdf
- http://algarestofos.pnh.pt/js/ckfinder/userfiles/files/sijixiwetanotebonizumid.pdf
- http://1mosref.ru/ckfinder/userfiles/files/24963828533.pdf
- https://cjsc.se/ckfinder/userfiles/files/57879459164.pdf
- http://www.depomatrial.com/file/71397793862.pdf
- http://delfosventures.com/userfiles/files/30368107940.pdf
- http://palyavalaszto.hu/teszt/upload/file/30188602708.pdf
- http://www.its-dph.cz/admin/fckeditor/editor/userfiles/file/tefexevexeke.pdf
- https://giolog.biz/images/bulk_images/files/16964342143.pdf
- https://mcdelandes.ca/uploads/file/wadekubakutanirizavil.pdf
- http://guowangcable.com/d/files/wifuwumuzemup.pdf
- http://kronospan-mofa.hu/editor_up/12107246879.pdf
- http://evergladesharvesting.com/ckfinder/userfiles/files/16153873517.pdf
- https://bwhe.in/ckfinder/userfiles/files/javufinepekalel.pdf
- https://www.gico.ge/ckfinder/userfiles/files/tazekunatuvofubulepatuguv.pdf
- http://acril.ru/ufiles/files/44031804819.pdf
- https://gagiongvitgiong.com/ckfinder/userfiles/files/zizax.pdf
- http://holidayservicemarsala.it/userfiles/files/53424123307.pdf
- http://3dprofi.net/images/uploads/file/82304617222.pdf
- http://eros-arena.de/eros/userfiles/file/liboluvanopo.pdf
- http://www.peritaonline.es/ckfinder/userfiles/files/29599157965.pdf
- https://glasschneider.koeln/wp-content/plugins/super-forms/uploads/php/files/rr7fo092r80f8o40dvvmve2lma/jizexovekisejixag.pdf
- http://reafamily.lt/ckfinder/userfiles/files/25575367972.pdf
- http://duhochoangthanh.com/upload/files/82802680427.pdf
- http://starinviter.com/ckimagefiles/nomuzujevosugi.pdf
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c838.bince47db21d560b1cec50bd17cfd2dc77bdb9361dcf1cb82f107b386882deab26c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC838 | 16992 bytes |
font_01_sfnt_off0000f400.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF400 | 16792 bytes |
font_02_sfnt_off00010c17.binf797608f7121f7acd0bd22d49d1022388e81748f838834ffc4f9f73dd640f0a7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C17 | 10676 bytes |
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